But, if instead of those search terms you actually enter "p*rn" on google trends, the top 10 regions are:
1. Ireland
2. United Kingdom
3. Australia
4. Canada
5. India
6. United States
7. Italy
8. Turkey
9. Finland
10. Sweden
If you enter "p*rn" on google Insights, the top 10 regions are:
1. Papua New Guinea
2. Trinidad and Tobago
3. United Kingdom
4. Ireland
5. Bangladesh
6. Canada
7. New Zealand
8. Australia
9. Zambia
10. United States
Insights tells you what search words they used to generate the data. I believe the Insights ranking is influenced by searches for "free ****", that's why it's different than the trends ranking.
But again, even these numbers, even if they were accurate, don't tell you what country views the most ****, just what region has a high ratio of keyword searches with "****" relative to all their other searches.